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轨道观测 | |
space | Orb View; orbit observation; OrbView |
GPS 卫星 | |
space | GPS satellites |
N 卫星 | |
space | N-SAT |
卫星 | |
environ. | satellite |
rem.sens. | satellite |
space | megabirds; satellites, balloons and rockets; moon |
高分辨率成像 | |
el. | high definition imagery |
系统 | |
tech. | system |
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Orb View (美国空军成像侦察卫星); orbit observation; OrbView (美国对地遥感卫星) |
轨道观测 : 60 phrases in 10 subjects |
Aviation | 3 |
Cartography | 3 |
Earth sciences | 10 |
Electronics | 8 |
Geology | 1 |
Geophysics | 2 |
Military | 2 |
Space | 22 |
Technology | 6 |
United States | 3 |